I have a sister in law in the hospital and they can t find a diagnosis. She started with a sensation of heat in the back of her head while working out. That brought a fierce headache and vomiting. She got a migraine shot like she s done before. Vomiting worsened and she didn t recognize her own children. She s now in the hospital and can only say the word yes. She s not eating or drinking. She tested positive for a UTI, but all big things are ruled out, stroke, aneurysm, heart. Any suggestions?